Gage.



J. W. WILLIAMS.

GAGE.

APPLIGATION FILED MAR.7,1913.

1,090,0O3 Patented Mar. 10, 1914.

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J. W. WILLIAMS.

GAGE.

APPLICATION FILED MAR.7.1S)1:I4 1,090,003. Patented Mar. 1o, 1914.

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NETE@ PATENT F" iliClE.

JOI-IN W. WILLIAMS, OF NORTH BIRMINGHAM, ALABAMA.

Application filed March 7, 1913.

To all @07m/1a it may concern Be it known that I, JoHN XV. VILLIAMS, a citizen oit the United States, residing at North Birmingham, in the county of Birminghani and State oi Alabama, have invented new and useful improvements in Gages, et which the following is a specification.

ihis invention relates to gages, and its object is to provide a device which is especially adapted i'or use as an attachment for or in conjunction with a cranbination square and rule, to serve as a sui-tace gage, depth and scratch gage and caliper gage, at will.

n. further object ot' the invention is to provide a device of this character which can be conveniently applied and removed, and which is adapted to hold the scriber at any required angle.

The invention consists oit the 'features ot construction, combination and arrangement of parts hereinafter fully described and claimed, reference being had to the accompanying drawings, in which Figure 1 is a front View of a combination square and rule, showing the device arranged for use as a surface gage. Fig. 2 is a back view of the blade of the tool, showing the device arranged for use as a depth and scratch gage. Fig. 3 is a similar View, showing the device arranged for use as a caliper gage. Figs. 4 and 5 are sectional views on the lines 1f and 5-5 of Fig. 1. Fig. 6 is a perspective view ot' the bracket. Fig. 7 is a view of the parts of the scriber clamp separated and arranged in propel' relation. Fig. 8 is a detail view of the cam for clamping the bracket to the tool blade.

Referring to the drawings, 1 designates a combination square and rule, the blade@ of which is provided on one side with a 1ongitudinally extending groove or slot 3. The gage constituting my invention is adapted to be adjustably mounted upon the blade 2 and comprises a bracket 3 provided at one side with an apertured ear l extending outwardly therefrom, the body of said bracket being formed with an opening 5. From the body of the bracket projects a pair of spaced guide plates 6 and 7 designed to overlie the opposite faces oi the blade 2. As shown, the plate 6 extends at its outer edge beyond the edge of the plate 7 and is provided with a guide flange 8 to engage the groove or slot 3, whereby the bracket is adapted to be slidably mounted upon the blade.

Specification of Letters Patent.

ljatented Mar. 1 0, 19114.

Serial No. 752,777.

In order to secure the device in adjusted position along the length of the blade, I provide a clamping member 9 consisting of a stem journaled within the opening 5 and provided with a milled head 10. The opening 5 coninninicates with the space between the inner ends ot the plates` (5V and 7, and the stem 'formed with a notch or recess 11 adapted when in register with said space to permit adjustmel'it ot' the bracket along the blade. The stem so iornied as to operate as a cani or eccentric, whereby when it is turned to bring its imnotehed surface into engagement with the edge oi the blade, the said clamping device will bind against such edge ot the blade and throw the flange 8 into engagement with one oit the walls of the groove or slot 3 thus clamping the gage trmly and securely in position.

Extending through and journaled in the opening` in the ear l is a pivot pin 12 having at one end a ilangc or head 13 bearing against one side et said car, and provided with a diainetrically extending opening 111. The opposite end oi the pin projects beyond the opposite 'tace oit the ear and is threaded to receive a milled clamping nut 15. Between this clamping nut and the ear are interposed washers 1G and 17, the meeting faces oit which are provided with recesses 18 registering with the opening 1&1. '.lhe said opening 14 and recesses 18 are adapted for the passage olE a scriber 19 having a straight pointed scribing end 2O and a right angularly bent scribing end 21, the construction being such that the seribcr may be extended across and at di'll'erent angles to the blade 2 to perform diil'erent functions. It will be understood, et course, that by relaxing the clamping nut 15 the scriber may be turned with and upon the pin 12 as an axis, and that then upon tightening said nut the scriber will be firmly clamped in adjusted position between the curved faces of the washers.

In the accompanying drawings I have shown, in Fig. .1, my improved gage applied to the blade E2 for use as a surface gage, while in Fig. 2 I have shown it arranged for use as a depth and scratch gage, and in Fig. 3 for use as a caliper gage, for which purposes it is adapted to be efficiently employed, and it will be apparent to those versed in the art that it may be employed Ator other analogous and useful purposes. It will be seen that it provides a gage which can be readily and conveniently attached to and detaohed from the blade of a Combination square and rule or other similar tool, and that it permits of the longitudinal adjustment of the scriber, as well as the arrangement of the seriber at varying angles to the blade, as occasion may demand.

I claim l. The combination with a blade having a groove therein, of a gage of the Character described comprising a bracket having a pair of guide plates, one of greater length than the other and provided at its outer edge with a clamping rib to engage said groove, said bracket having an opening communicating with the space between the plates and an outwardly extending ear, a Clamping cam journaled in said opening and adapted to engage one of the edges of the blade, a pivot pin journaled in the ear and having an opening therein, a seriber extending through the opening in the pin, and Clamping means carried by the pin to engage and hold said pin and seriber in adjusted position.

2. The combination with a blade having a groove therein, oit' a gage of the character described comprising a bracket having a pair of guide plates, one of greater length than the other and provided at its outer edge with a clamping rib to engage said groove, said bracket having an opening communicating with the space between the plates and an outwardly extending ear, a clamping cam journaled in said opening and adapted to engage one of the edges of the blade, a pivot pin journaled in the ear and having an opening therein, grooved washers upon said pin, a seriber extending through the opening in the pin and grooves in the Washers, and a clamping nut engaging the pin to cooperate with the washers, whereby the pin and soriber may be clamped in adjusted position.

In testimony whereof l affix my signature in presence of two witnesses.

JOHN W. WILLIAMS. Witnesses:

J No. A. WATFORD, WV. B. MORRISON.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner ef Patents.

Washington, D. C. 

